+ Reply to Thread
Results 1 to 2 of 2

Thread: one question

  1. #1
    Points: 4,657, Level: 43
    Level completed: 54%, Points required for next Level: 93

    Thanked 0 Times in 0 Posts

    one question

    well, I did post this in another forum, but I just realized I probably should have posted it here. I've just been having trouble with this one problem that I cannot seem to get.

    A hot dog stand has a daily demand for hot dogs on a weekend follows a normal distribution with a mean of 400 and a standard deviation of 50.

    Find the probability that the sample mean demand for a random sample of 4 weekend days will be less than 300.

    I tried the central limit theorem, but it didn't work, and there wasn't enough info to do the finite population correction. Can anyone help?

  2. #2
    Points: 5,768, Level: 49
    Level completed: 9%, Points required for next Level: 182

    Thanked 0 Times in 0 Posts

    I think you just need to find the z-score for x-bar = 300 and sigma = 50 and look it up on the SND table.

    you're trying to make this hard again....


+ Reply to Thread


Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts

Advertise on Talk Stats